def start_capture(
self,
cam: Camera,
trigger: RecordingTrigger,
with_buffer: bool = False) -> Tuple[VideoWriter, Disposable]:
print("starting capture of " + cam.name)
if cam.id in self.__recording:
return
buffer = self.__frameserver.get_buffer(cam.id)
writer = VideoWriter(self.__generate_name(cam, trigger))
writer.open()
if with_buffer:
writer.write_packets(buffer.get_packets())
subscription = buffer.get_observable().subscribe(
on_next=lambda p: writer.write_packet(p))
self.__recording[cam.id] = ActiveRecording(writer, subscription,
datetime.now())
async def save(request):
buffer = frameserver.get_buffer("test")
writer = VideoWriter("/home/hannes/Projekte/studienarbeit/test/out.mp4")
writer.open()
writer.write_packets(buffer.get_packets())
subscription = buffer.get_observable().subscribe(
on_next=lambda p: writer.write_packet(p))
await asyncio.sleep(10)
subscription.dispose()
writer.close()
last = buffer.get_packets()[-1]
if (last == None):
return web.Response(content_type="text/html", text="No Frame")
output = io.BytesIO()
frame = last.decode()[0].to_image()
frame.save(output, format='PNG')
output.seek(0)
output_s = output.read()
b64 = b64encode(output_s)
return web.Response(content_type="text/html",
text="<img src='data:image/png;base64," +
str(b64)[2:-1] + "'>")